/*
 * Copyright [2009] [Marcin Rzeźnicki]

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
 */
package mr.go.sgfilter.vis.app;

import java.io.File;
import java.util.ResourceBundle;

import javax.swing.filechooser.FileFilter;

class CsvFileFilter extends FileFilter {

    public static String getExtension(File f) {
        String ext = null;
        String s = f.getName();
        int i = s.lastIndexOf('.');

        if (i > 0 && i < s.length() - 1) {
            ext = s.substring(i + 1).toLowerCase();
        }
        return ext;
    }

    @Override
    public boolean accept(File f) {
        if (f.isDirectory()) {
            return true;
        }
        String ext = getExtension(f);
        return (ext != null) && ext.equals("csv");
    }

    @Override
    public String getDescription() {
        return application.getString("CSV_FILES");
    }

    private static final ResourceBundle application = ResourceBundle.getBundle(
            "mr/go/sgfilter/vis/app/resources/Application");

}
